Author Topic: Unmodified Peco turnouts on the Red Oak  (Read 2148 times)

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Erik PRR

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Unmodified Peco turnouts on the Red Oak
« on: January 13, 2015, 03:06:21 PM »
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Just saw the third video instalment of building the Red Oak by Model Railroader. Just like the article in the February magazine, it gives the impression that they rely on the switch points for electrical connection in the turnout.

This is one of my favourite topics. To build a layout like this takes a brave builder - who wants to tear up all his or her turnouts after some time to solder jumpers and install microswitches? Still, David Popp does once again what I assume he did on the Naugatuck Valley layout that was started in - I think - 2000, and now on a layout built for train shows. Do any of you have long time experience of doing this?

Chris1274

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Re: Unmodified Peco turnouts on the Red Oak
« Reply #1 on: January 13, 2015, 03:28:09 PM »
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Peco turnouts are spring-loaded, so as long as the contact points are kept clean there shouldn't be any issues (at least that's my hope; I'm using them on my upcoming layout).

mark.hinds

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Re: Unmodified Peco turnouts on the Red Oak
« Reply #2 on: January 13, 2015, 03:34:02 PM »
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FWIW, my aged 1980s-era trackwork is Peco code 80 and Shinohara code 70.  The former has dead frogs, and the latter powers the frogs through the switchpoints.  Both have worked perfectly for 30 years.  Note however:

1)  I use geared display motors which exert constant pressure on the switch points, the track is sturdy, and the code 80/70 points have a relatively large contact area.  This gives good conductivity, which might be lacking with other methods. 

2)  I am using DC, not DCC.  However, the gap between the point and stock rails is very wide (twice that of Atlas code 55), and so the chance of a short at the points is small.  Also the layout is relatively small, with a planned maximum of 3 operators.  Thus I could probably use DCC on the existing trackwork with acceptable reliability. 

3)  It is not ballasted, so has never been exposed to water and glue. 

MH
« Last Edit: January 13, 2015, 03:37:54 PM by mark.hinds »

mark dance

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Re: Unmodified Peco turnouts on the Red Oak
« Reply #3 on: January 13, 2015, 03:37:12 PM »
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The C&W has about 210 Peco code 55 Electrofrog switches which have been in more or less continuous monthly operation for 7 years.  Roughly 1/3rd are thrown by Tortoises and the switch motor is used to route power.  The balance of ~140 are hand thrown and the points route the power.  I have had one switch failure in 7 years.

I run a loco over every length of track and through each turnout route to test things before an ops session.  I just finished yesterday in prep for a session this Thursday.  If I find poor conductivity anywhere I address it.  If my memory is correct I had to clean about 10-12 hand-thrown turnouts and maybe 3-4 Tortoise-thrown ones.  To clean the hand-thrown ones it is a matter of running a dry cloth between the closure rails and the points - a total of 10 seconds or so - then retest.  Cleaning the top surfaces of a Tortoise-driven turnout isn't much different time wise.  During a 4 hour ops session perhaps I have 1-2 stalls which are remedied the same way but generally stalls occur during a session because crews are being too delicate when throwing the switch points by hand. A reminder to throw the points more forcefully overcomes this.

Steve Stark used hand thrown Peco turnouts exclusively (I believe) for >20 years on his recently disassembled DC E&N layout.  I believe he was very happy with their reliability and conductivity.  I will ask him this Saturday because we (and a bunch of Vancouver N scalers) are travelling to Al Frasch's Pilchuk Division for a session.

md
« Last Edit: January 13, 2015, 03:40:06 PM by mark dance »
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wazzou

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Re: Unmodified Peco turnouts on the Red Oak
« Reply #4 on: January 13, 2015, 03:52:57 PM »
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I will ask him this Saturday because we (and a bunch of Vancouver N scalers) are travelling to Al Frasch's Pilchuk Division for a session.

md


I've been there a couple of times with a group.  Ask him about the large boulder in the basement.
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Erik PRR

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Re: Unmodified Peco turnouts on the Red Oak
« Reply #5 on: January 13, 2015, 03:54:33 PM »
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Thanks for sharing your thoughts and experience! I also had a layout with unmodified Peco turnouts, and only had an issue with one, that had been spray painted while it - on another layout in a setting long long time ago - was used with a SPDT-switch. Scraping the paint of fixed the problem. But I never got to ballasting, and the layout only lasted for three years, yet in a humid basement.

I like building on foam. That makes it difficult to firmly attach slide switches, and under-the-layout-devices.

Ed Kapuscinski

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Re: Unmodified Peco turnouts on the Red Oak
« Reply #6 on: January 13, 2015, 04:00:13 PM »
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I like building on foam. That makes it difficult to firmly attach slide switches, and under-the-layout-devices.

It does, but there's a fix. Instead of firmly mounting the switch to the foam, mount it to the switch.

I did this on my shelf and... don't have any good pics. I'll work on that for you.

mark dance

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Re: Unmodified Peco turnouts on the Red Oak
« Reply #7 on: January 13, 2015, 04:12:14 PM »
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I guess one could read the C&W results in a few ways but I'd like the take away to be that, when properly used, the hand thrown, point-power-routed Peco turnouts are as reliable as switch motor thrown Pecos and require approximately the same level of maintenance. I would expect that to be true in comparison to Pecos that use slide switches as well.

Md
Youtube Videos of the N Scale Columbia & Western at: markdance63
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C855B

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Re: Unmodified Peco turnouts on the Red Oak
« Reply #8 on: January 13, 2015, 04:13:45 PM »
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Our N-Trak club's yard - 20+ years old - relies on only the points for power routing when we operate DC. Since the Pecos are spring-loaded and hold the points to the stock rails, there are no switch machines nor slide switches, or anything outside of the points. We route manually with a finger. It does remarkably well for its age... and significant abuse. I've dropped the yard ladder modules more than once, when I forget they don't balance well on-end. :scared:

Very recently, however, we're seeing issues. Fortunately there is a quick fix - I spritz contact cleaner on the points and hinges and flip things back and forth a few times. Done. In our case there is no interest in trying to correct the problem with external power routing since other aspects of the yard modules are showing their years, and it's time for new construction from the floor up. When that is going to happen is anybody's guess, so thank goodness for contact cleaner.
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ntrakia

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Re: Unmodified Peco turnouts on the Red Oak
« Reply #9 on: January 13, 2015, 09:18:28 PM »
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on our cantington ntrak layout we have used unmodified peco switches out of the box and manually thrown--most of the older ones have labelle ground throws which are about half the size of the red caboose throws and were sold in the seventies by con-cor. 
            rail has been painted and track ballasted.  we only set up 3-4 times a year, bedford and columbus being 2 venues, and the rest of the year the layout is stored in a custom trailer outside in the extreme temperatures of weather. very little maintenance required.   

mmagliaro

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Re: Unmodified Peco turnouts on the Red Oak
« Reply #10 on: January 13, 2015, 09:33:25 PM »
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I lived with this on some of my previous layouts, and on a big club layout back in the 1990s.
Unmodified Peco did hold up surprisingly well, conducting just through the point tips.

But it did require regular cleaning when one would occasionally go dead.   Still, it was not a major headache.
That group layout had hundreds of turnouts, some hand-made, and some Peco, with once-per-week
operating sessions - all DC.  And dead turnout rails were never high on the list of annoyances.

I think on a table-sized layout like the Red Oak, it would be quite manageable.
I will say that personally I would never do it... I would put microswitches in place and bypass those
points.  But I can see how it makes the project much easier to build and won't "ruin everything" when
some of the switch points get dirty and need cleaning.

A bigger issue to me is unpowered frogs.  I forget now... is that Red Oak layout using plastic
frogs?   That is something I could not live with.  When I transitioned to powered-frog turnouts,
the huge drop-off in engine sputters and stalls at turnouts convinced me I would never ever go back
to dead frogs.

Chris1274

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Re: Unmodified Peco turnouts on the Red Oak
« Reply #11 on: January 13, 2015, 09:37:55 PM »
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A bigger issue to me is unpowered frogs.  I forget now... is that Red Oak layout using plastic frogs?   That is something I could not live with.  When I transitioned to powered-frog turnouts, the huge drop-off in engine sputters and stalls at turnouts convinced me I would never ever go back to dead frogs.
No, Peco code 55 turnouts are all "electro-frog"

mark.hinds

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Re: Unmodified Peco turnouts on the Red Oak
« Reply #12 on: January 13, 2015, 09:38:54 PM »
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<snip>
A bigger issue to me is unpowered frogs.  I forget now... is that Red Oak layout using plastic
frogs?   
<snip>

Powered frogs, per picture on page 57 of the January MR.

MH

mrhedley

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Re: Unmodified Peco turnouts on the Red Oak
« Reply #13 on: January 14, 2015, 09:25:42 AM »
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One problem with PECO's is that the point rails are joined to the closure rails with what appear to be common rail joiners.  Ballast and ballast cement can foul this joint and disrupt contact.  I put electrical tape on the underside of Peco turnouts and "dry ballast" between the ties to minimize the risk.  It has worked fairly well.  It also keeps from fouling the spring that operates the turnout an provides good rail contact.  Like others have suggested it is a good idea to add turnout throws (if not using electric switch machines) to maintain rail contact pressure as these springs can weaken over time with heavy use.  The "rail joiner" issue is much more trouble some with the Shinohara powered rail turnouts.  Where I've used these I've had to put a tiny solder bead on either side of the joiner to provide continuity.  The joiners simply don't stand up to usage and don't make good contact after while.  But you need to be very careful when doing this not to get solder in the rail gaps and keep the joint working freely.

Erik PRR

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Re: Unmodified Peco turnouts on the Red Oak
« Reply #14 on: January 14, 2015, 02:58:14 PM »
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One problem with PECO's is that the point rails are joined to the closure rails with what appear to be common rail joiners.  Ballast and ballast cement can foul this joint and disrupt contact.  I put electrical tape on the underside of Peco turnouts and "dry ballast" between the ties to minimize the risk.  It has worked fairly well.  It also keeps from fouling the spring that operates the turnout an provides good rail contact.  Like others have suggested it is a good idea to add turnout throws (if not using electric switch machines) to maintain rail contact pressure as these springs can weaken over time with heavy use.  The "rail joiner" issue is much more trouble some with the Shinohara powered rail turnouts.  Where I've used these I've had to put a tiny solder bead on either side of the joiner to provide continuity.  The joiners simply don't stand up to usage and don't make good contact after while.  But you need to be very careful when doing this not to get solder in the rail gaps and keep the joint working freely.
Interesting points, and quite different from the other posts. Have you experienced malfunction frequently, or do you merely fear upcoming problems? The spring seems strong, and I have never noticed or heard about failures.